PHOTO: CHRIS MCKEEN/STUFF Pania Newton has been leading protests, on behalf of Save Our Unique Landscape, at Ihumātao.

Fletcher Building doesn’t expect any secrets to be unearthed at Ihumātao, should the construction giant’s 480 home development at the contested site go ahead.

For the past four years the NZX-listed company has been planning Ōruarangi – a housing project on a 32 hectare site in Mangere, on the edge of the Manukau Harbour a half hour drive south from downtown Auckland.

The land, which was until recently a privately owned farm for 150 years, sits next to the 100ha Ōtuataua Stonefields Historic Reserve as well as the small village of Ihumātao.